March 01, 2018 22:30 Updated Follow To contact INDOT Central Office Customer Service, call 1-866-849-1368 or email email@example.com. Contact information and other frequently used phone numbers for INDOT districts can be found at Frequently Used Phone Numbers Related articles What is being done to inform property owners about the Illiana project and their legal rights? How do I report a concern? Why is the Illiana needed? How do I file a claim for property damage and/or personal injury? How do I find a participating lender?